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-   -   Replacing our Heat Pump system (https://www.askmehelpdesk.com/showthread.php?t=421049)

  • Dec 1, 2009, 11:49 AM
    knoxwell
    Replacing our Heat Pump system
    Our system is only 9-10 years old. The compressor went out in the outside unit. Is this an accurate life expectancy for a system? We are told it was a cheap 'builders grade' system. (Teledyne) And also that it was too big for the house. It was a 50 ton system and he said we barely need a 40 ton. Could this be the reason the compressor failed?
    We are being told we should replace the whole system due to the R22 to R410 change. Is this true?
    Cost = $14,000 (York) to $15,000 (American Standard). Includes system, labor, electronic air cleaner, duct cleaning, comfort system thermostat, 10 yr parts, 5 yrs labor, 2 yrs of tune ups and cleaning. This seems so high. We are calling for more estimates now... but would like some help on what brands to consider.
    Also, he said he could just flush out the lineset. Is this true or should refrigerant lineset be replaced?
    Thanks in advance for any help...
    Clueless in Washington State
    :confused:
  • Dec 1, 2009, 01:20 PM
    hvac1000
    1 Attachment(s)
    Is this an accurate life expectancy for a system?

    Actually there is no accurate life expectancy for a heat pump but a good guess is around 9 to 15 years with the proper annual service as recommended by the factory.

    We are told it was a cheap 'builders grade' system. (Teledyne)

    That is possible depending upon the model number. That brand is not to popular also.

    It was a 50 ton system and he said we barely need a 40 ton.

    First off it is not a 50 ton unit for any house it is more than likely a 5 ton unit which is 60,000 btu's. Yes it is possible your unit is to large BUT there is only ONE way to tell how large a unit you actually need and that is by doing a manual J on your home to calculate the heat loss and heat gain of the structure. Anyone tells you different has no idea what they are talking about.

    We are being told we should replace the whole system due to the R22 to R410 change. Is this true?

    Yes that is a true statement and while you are at it I also suggest you replace the line set from the inside unit to the outside unit and also make sure it is the proper size.

    Cost = $14,000 (York) to $15,000 (American Standard). Includes system, labor, electronic air cleaner, duct cleaning, comfort system thermostat, 10 yr parts, 5 yrs labor, 2 yrs of tune ups and cleaning. This seems so high. We are calling for more estimates now... but would like some help on what brands to consider.

    Do not pick the brand or the price but pick the qualified contractor. Get at least 3 estimates,call the BBB to see if any complaints on file,follow the item posted below and make your decission. ALL unit are designed to work well it is the install that makes a good system or a junker not the equipment.

    Also, he said he could just flush out the lineset.

    Flushing a line set is acceptable to some but I prefer new since you are not going to save much money and you want to make sure the line set is properly sized. Also a new lineset takes away and blame on problems from being brought up about the old used lineset.
  • Dec 1, 2009, 02:04 PM
    knoxwell

    Thank you so much for your help! Of course you are correct it was 5 ton... not 50 ton. He did some calculations on our home to come up with that recommendation. Square footage, # of windows, # of vents. He said it came to a little over 3.78 that is why he suggested the 4 ton unit. He aid the 5 ton unit was too large and that is most likely why our compressor burned up. I have arranged 2 more estimates per your suggestion.
    Thanks again!
  • Dec 1, 2009, 05:48 PM
    hvac1000
    Enjoy your new equipment.
  • Dec 3, 2009, 07:28 PM
    knoxwell

    OK... I have gotten all of my estimates. But we have 2 items that are different on our 2 'favorite' bids.
    1. 20KW Heat strips vs 10KW Heat strips
    2. Honeywell F300 Electronic Air Filter($650.00) vs Trane Clean Effects Electronic Air Filter($1000.00).
    Can you tell me whether these differences really make a difference?
  • Dec 3, 2009, 11:44 PM
    hvac1000
    20 KW is a lot of strip heat but they are probably sizing it to cover the entire load just in case the heat pump breaks down so if not to expensive I would let that ride.

    A 1000.00 air cleaner is a little to rich for me.

    When it all comes down to your situation let your pocket book be your guide.

    If you have the time post the entire estimates so we can see the entire differences.

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